Question

26. Light enters from air into a glass plate having refractive index 1
What is the speed of light in glass? (The speed of light in vacuu
3 x 108 m/s)​

Answer 1

Answer:3×10^8m/s

Explanation:Refractive index of glass=c/v

=>v=Refractive index of glass×c

=>v=1×3×10^8

=>v=3×10^8m/s(answer)

c-->speed of light in vacuum

v-->speed of light in glass

Answer 2

Explanation:

2× 10^8 m/s is the right answer